Fiasp (insulin aspart) Vial
From$58
$379
Fiasp Vial Insulin Aspart
Select product strength & quantity:
Prescription Required
Ships within 4-10 Business Days
Express Ships from Canada
Cold Shipment

SAVE 10% on first order

with coupon code:

PGSAVE10

What is Fiasp (insulin aspart)?

Fiasp (insulin aspart) is an FDA-approved, man-made (human insulin analog) rapid-acting insulin used to control high blood sugar in patients with type 1 and type 2 diabetes mellitus. Its fast action is enhanced by the addition of Vitamin B3 (niacinamide) and L-arginine, which promote rapid absorption and stability, allowing it to begin working immediately after injection.

How does Fiasp work?

Insulin, including insulin aspart, exert their action by binding to insulin receptors. Receptor-bound insulin lowers blood glucose by facilitating the cellular uptake of glucose into skeletal muscle and adipose tissue and inhibiting the output of glucose from the liver. Insulin inhibits lipolysis in the adipocyte, inhibits proteolysis, and enhances protein synthesis.

Dosage and How to Use

Fiasp is available as an injection in the following dosages and forms

  • 100 units/ml (U-100)
  • 10 ml multiple dose vial
  • 3 ml single-patient-use Fiasp FlexTouch pen

General dosing information

  • Fiasp dosages should be based on the patient’s metabolic needs, blood glucose monitoring results, and glycemic control goal.
  • Dose adjustments may be needed when switching from another insulin, changes in physical activity, changes in medications, changes in meal patterns, and other factors.

Important administration information

  • Always check the insulin label before administration
  • Visually inspect for particulates or discoloration. Only use Fiasp if it is clear and colorless
  • Do not ever administer Fiasp intramuscularly
  • Do not dilute or mix Fiasp with any other insulin products or solutions, except infusion fluids
  • Always use a new needle for each injection

Subcutaneous injection

  • Inject Fiasp at or within 20 minutes after starting a meal subcutaneously into the abdomen, upper arm, or thigh.
  • Rotate injection sites within the same region at each injection to reduce the risk of lipodystrophy
  • Fiasp given by subcutaneous injection should generally be used in regimens with intermediate or long-acting insulin
  • Instruct patients on basal-bolus treatment who forget a mealtime dose to monitor their blood glucose level to decide if an insulin dose is needed and to resume their usual dosing schedule at the next meal

Storage

 Fiasp vials

  • Unused Fiasp vials should be stored between 2° to 8°C (36° to 46°F) in a refrigerator, but not in or near a freezing compartment.
  • Fiasp should not be drawn into a syringe and stored for later use. Only use the product if it has a clear and almost colorless appearance.

Fiasp FlexTouch Pens

  • Always remove the needle after injection and store FlexTouch pens without a needle attached.

Storage conditions for vials and Fiasp FlexTouch pens are summarized below:

Unopened Opened
Room Temperature (below 30°C) Refrigerated (2°C to 8°C) Room Temperature (below 30°C) Refrigerated (2°C to 8°C)
10 ml vial and FlexTouch pens 28 days Until expiration date 28 days 28 days

Fiasp should not be exposed to excessive heat or light and must never be frozen. Do not use Fiasp if it has been frozen.

Keep the cap on the pen to protect Fiasp from light. Keep unused vials and Fiasp FlexTouch in the carton so they will stay clean and protected from light.

Overdose

Mild overdose of insulin can result in hypoglycemia and hypokalemia. Mild hypoglycemia can be treated with oral glucose. If you have severely overdosed your insulin, seek medical attention immediately, as more severe episodes of hypoglycemia can lead to coma, seizures, or neurological impairment. Severe hypoglycemia can be treated with intramuscular/subcutaneous glucagon or concentrated intravenous glucose. Hypokalemia must be corrected appropriately.

Side Effects

 Some common side effects with Fiasp are:

  • Skin problems such as eczema, itching, and redness
  • Reactions at the injection site such as itching and rash
  • Skin thickening or pits at the injection site (lipodystrophy)
  • Weight gain

Serious side effects that are possible with Fiasp are:

  • Hypoglycemia
    • Signs of hypoglycemia may include:
      • Light-headedness
      • Dizziness
      • Confusion
      • Blurred vision
      • Shakiness
      • Anxiety or mood changes
      • Hunger
  • Hypokalemia
  • Serious allergic reactions
    • Seek medical attention immediately if you have any one of the following signs of a severe allergic reaction:
      • Rash over your whole body
      • Trouble breathing
      • Fast heartbeat
      • Swelling of your face, tongue, or throat
      • Sweating
      • Extreme drowsiness
  • Heart failure
    • Taking certain diabetes medications called TZDs (thiazolidinediones) with Fiasp may cause heart failure in some people

The information above does not list all possible side effects. Contact your doctor or pharmacist if you experience any side effects not listed. You or your doctor may report side effects to the FDA by calling 1-800-FDA-1088.

Warnings & Precautions

Never Share a Fiasp FlexTouch Pen Between Patients

  • FlexTouch pens should never be shared, even if the needle is changed. Sharing poses a risk for the transmission of blood-borne pathogens.

Hyperglycemia or Hypoglycemia with Changes in Insulin Regimen

  • Changes in insulin, insulin strength, manufacturer, type, or method of administration may affect glycemic control.

Hypoglycemia

  • Hypoglycemia is the most common adverse reaction of all insulin therapies. Severe hypoglycemia can lead to seizures, unconsciousness, and even death. Patients at higher risk for hypoglycemia or who have reduced symptomatic awareness of hypoglycemia may need to monitor blood glucose more frequently.

Hypoglycemia Due to Medication Errors

  • Accidental mix-ups between insulin products have been reported. Instruct patients to always check the insulin label before each injection to minimize medication errors.

Hypokalemia

  • All insulin products can cause a shift of potassium from the extracellular space to the intracellular space, potentially leading to hypokalemia.

Hypersensitivity and Allergic Reactions

  • Severe, life-threatening, generalized allergies, including anaphylaxis, can occur with insulin products.

Fluid Retention and Heart Failure with Concomitant Use of PPAR-Gamma Agonists

  • Thiazolidinediones (TZDs) are peroxisome proliferator-activated receptor (PPAR)­ gamma agonists and can cause fluid retention, particularly when used in combination with insulin. Fluid retention can lead to heart failure or exacerbate existing heart failure.

Drug Interactions and Other Interactions

 Drugs That May Increase the Risk of Hypoglycemia

  • Antidiabetic agents, ACE inhibitors, angiotensin II receptor blocking agents, disopyramide, fibrates, fluoxetine, monoamine oxidase inhibitors, pentoxifylline, pramlintide, salicylates, somatostatin analogs (e.g., octreotide), and sulfonamide antibiotics

Drugs That May Decrease the Blood Glucose Lowering Effect of Fiasp

  • Atypical antipsychotics (e.g., olanzapine and clozapine), corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline), and thyroid hormones

Drugs That May Increase or Decrease the Blood Glucose Lowering Effect of Fiasp

  • Alcohol, beta-blockers, clonidine, and lithium salts. Pentamidine may cause hypoglycemia, which may sometimes be followed by hyperglycemia

Drugs That May Blunt Signs and Symptoms of Hypoglycemia

  • Beta-blockers, clonidine, guanethidine, and reserpine

Contraindications

 Fiasp is contraindicated in any of the following:

  • During episodes of hypoglycemia
  • In patients with known hypersensitivity to insulin aspart or one of the excipients in Fiasp

Frequently Asked Questions

Fiasp is a man-made insulin used to control high blood sugar in patients with diabetes mellitus.
You should not take Fiasp if you are having an episode of low blood sugar (hypoglycemia) or are allergic to insulin aspart or any ingredient in Fiasp.
Make sure to take Fiasp exactly as instructed by your doctor because their directions may change until your blood sugar is well controlled. Take your dose of Fiasp at the beginning of the meal or within 20 minutes after starting a meal. Know the type and strength of insulin you are taking, and never change the type of insulin unless instructed by your healthcare provider. If you miss a dose of Fiasp, check your blood sugar levels to decide if an insulin dose is needed. Your doctor will have more information about the blood sugar ranges that are specific to you. Continue with your regular dosing schedule at the next meal. Ask your healthcare provider what your blood sugars should be and when you should check your blood sugar levels. Do not reuse or share needles with other people. You may give others a serious infection or get a serious infection from them.
You should avoid:
  • Driving or operating heavy machinery until you know how Fiasp affects you
  • Consuming alcohol or using medicines that contain alcohol
The most common side effects of Fiasp are:
  • Skin problems such as eczema, itching, and redness
  • Reactions at the injection site such as itching and rash
  • Skin thickening or pits at the injection site (lipodystrophy)
  • Weight gain
This is not a comprehensive list of all possible side effects of Fiasp. Please reach out to your doctor or pharmacist for more information.

Serious side effects are possible with Fiasp, including:
  • Low blood sugar
  • Symptoms of low blood sugar may include:
  • Light-headedness
  • Dizziness
  • Confusion
  • Blurred vision
  • Shakiness
  • Anxiety or mood changes
  • Hunger
  • Low potassium in your blood
  • Serious allergic reactions
  • Seek medical attention immediately if you have any of the following signs of a severe allergic reaction:
    • Rash over your whole body
    • Trouble breathing
    • Fast heartbeat
    • Swelling of your face, tongue, or throat
    • Sweating
    • Extreme drowsiness
  • Heart failure
  • Taking certain diabetes medications called TZDs (thiazolidinediones) with Fiasp may cause heart failure in some people
  • Tell your healthcare provider if you are experiencing any of the following signs of heart failure:
    • Shortness of breath
    • Swelling of the ankles and feet
    • Sudden weight gain
The active ingredient in Fiasp is insulin aspart, and the inactive ingredients include glycerol, phenol, metacresol, zinc, disodium phosphate dihydrate, arginine hydrochloride, niacinamide, and water for injections.
Do not freeze Fiasp; do not use Fiasp if it has been frozen. Keep Fiasp away from excessive heat or light.
  • Store unopened Fiasp vials and FlexTouch pens in the refrigerator at 36° F to 46° F (2° C to 8° C) or at room temperature below 86° F (30° C)
  • Store opened Fiasp vials and FlexTouch pens in the refrigerator at 36° F to 46° F (2° C to 8° C) or at room temperature below 86° F (30° C)
  • Unopened Fiasp vials and FlexTouch pens may be used until the expiration date printed on the label if kept in the refrigerator
  • If Fiasp vials and FlexTouch pens are stored at room temperature prior to first use, they should be used or thrown away within 28 days
  • Opened Fiasp vials and FlexTouch pens should be thrown away after 28 days, even if they still have insulin left in them
If you miss a dose of Fiasp, check your blood sugar levels to decide if an insulin dose is needed. Your doctor will have more information about the blood sugar ranges that are specific to you. Continue with your regular dosing schedule at the next meal.
Numerous medications can interact with Fiasp. Ensure that your doctor is aware of all the medications you are taking, including prescription, over-the-counter, natural supplements, and vitamins.
There is no available evidence that suggests that Fiasp can harm your unborn baby. Your doctor may continue treatment with Fiasp while you are pregnant. Inform your doctor immediately if you become pregnant or are planning on becoming pregnant.
Fiasp begins to work very quickly, usually around 15-20 minutes.
If you skip a meal, you need to skip the dose of Fiasp. Fiasp can cause severe hypoglycemia if you take a dose without eating a meal.
Never use Fiasp if it appears discolored or cloudy. Only use Fiasp if the solution appears clear and colorless.
Fiasp and Novolog are not interchangeable. Never change insulins unless instructed by your doctor. With that said, Fiasp and Novolog both contain the active ingredient insulin aspart, but they are not the same.

Disclaimer

Pharma Giant provides medical information to help you better understand medications and medical conditions.This content is for informational use only and does not replace advice from a licensed medical practitioner. Consult your doctor or pharmacist before starting or changing any medication. All our partners follow strict safety standards set by their country’s health authorities to make sure you receive safe and high-quality medications.

Have a prescription?

Order Fiasp Vial online today and enjoy a host of benefits, including:

Customer Reviews
  • Cost Savings: Buy Fiasp Vial at LOWER PRICES compared to the US
  • Bulk Order Discounts: Enjoy additional savings with bulk orders of Fiasp Vial (up to 90-day supply)
  • Reliable Express Shipping: Fast and discreet delivery shipped directly to your doorstep
  • Exceptional Customer Service: Have a question? We’re delighted to help via live chat, email, or phone
  • Easy & Secure Ordering: Seamless online or phone ordering at 1-888-513-2294
  • SAVE 10% on first order with coupon code: PGSAVE10

Price Match Guarantee

Price Match Guarantee

We are committed to providing fair, competitive pricing on all medications. If you find a lower price on the same product at another verified Canadian online pharmacy, we’ll match it.

Eligibility Criteria

  • The pharmacy must be a licensed Canadian online pharmacy with a verifiable address.
  • The competitor’s price must be current and active (not from a past or future promotion).
  • The product must be identical in strength, pack size, quantity, manufacturer, and country of origin.
  • Requests must be submitted before placing an order — adjustments cannot be made after purchase.
  • Price matching does not apply to used or expired products.
  • Requests can be submitted via live chat or phone prior to completing your order.

Note: Price matching does not currently apply to Mounjaro® , Ozempic® or Saxenda®. However, this policy may be updated in the future.

Jakob Leaderbrand, PharmD, CSP

Jakob Leaderbrand, PharmD, is a licensed pharmacist with extensive experience in specialty pharmacy and clinical program management. Based in the Kansas City metro area, he holds a Doctor of Pharmacy degree from the University of Missouri-Kansas City and a Specialty Pharmacy Certification. Currently, Jakob works in Specialty Pharmacy, where he leverages his clinical expertise to drive adherence, improve patient outcomes, and ensure compliance through effective communication of complex data insights. Jakob is known for his commitment to operational excellence and for leading initiatives that streamline patient assessments and enhance audit compliance, making a significant impact on patient care and client relationships in the pharmacy sector.